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ludic ui-preview: ludic.ui components previewed for a studio over stdio (R5)

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A prebuilt tool, bin/ludic-ui-preview (built by ludic-dev build, shipped beside ludic-lsp, run as
`ludic ui-preview [--font DIR]`): ludic.ui with a backend that records every draw call as a line,
and mock component classes the studio describes (load / model / calls). frame t runs ui_show at
interface time t; text is measured on the CPU with the game's font.json metrics; locale goes
through ludic.i18n; tree / box / rules inspect the frame. No game code, no GPU, no network. The wire
protocol is frozen as tools/ui-preview/protocol-v1.md; smoke.txt is a transcript to run.

ludic.ui gains, all additive: UiClass.make_of, UiBackend.said / emitted, UiRule.text / at (with
comment line breaks kept so rule lines count true, and a class's styles read under its .lss path),
and ui_root, ui_find, ui_rules_of, ui_rule_value, ui_building, ui_class, ui_class_load,
ui_file_forget, ui_errors_clear; ui_nine_cuts_into exported.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-29 19:53:26 +03:00
parent 28f7b4666b
commit 49b5e80af5
38 changed files with 1986 additions and 16 deletions
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9
packages/ludic.ui/class.ludic
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@ -8,6 +8,7 @@ export property UiClass {
lss_path: string = ""
lss: string = ""
make: fn() -> pointer = null
make_of: fn(UiClass) -> pointer = null # instead of make: one constructor a host's classes share, handed the class
renew: fn(pointer) -> void = null # a record `make` made, put back as new: an instance mounted again
props: fn(pointer, Val) -> void = null
model: fn(pointer, Val) -> Val = null # fills the object it is given (the instance keeps one)
@ -24,6 +25,8 @@ export function ui_register(ui_st: mut UiState, k: UiClass) -> int {
push(ui_st.uc_list, k)
return len(ui_st.uc_list)
}
# the class of that name, for a host that changes a class it registered (null: none)
export function ui_class(ui_st: UiState, name: string) -> UiClass { return uc_find(ui_st, name) }
function uc_find(ui_st: UiState, name: string) -> UiClass {
if ui_st.uc_list == null { return null }
for i in 0 .. len(ui_st.uc_list) {
@ -37,7 +40,11 @@ function uc_load(ui_st: mut UiState, k: UiClass) -> void {
if k.root != null { return }
let f = lib_blank(k.xml_path)
f.src = k.xml
if k.lss != "" { lss_text(ui_st, f, k.lss) }
if k.lss != "" {
if k.lss_path != "" { f.path = k.lss_path } # its rules and errors say the stylesheet they are in
lss_text(ui_st, f, k.lss)
f.path = k.xml_path
}
f.sheet = sheet_of(f)
tp_lines(ui_st, k.xml)
let doc = Xml.parse(k.xml)